
🛠️ Engineering Blog
Engineering stories, architecture decisions, and lessons from building AgeTech — written for developers.
Looking for our caregiving essays? They are written in Japanese over at 読みもの.
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The Architecture Was Simple. The Delivery Path Was Not.

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The Prototype Worked. Then GutPacer Had to Become a Product.

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Not Every Asset Belongs on the Balance Sheet

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A Green Pipeline Is Not Permission: Governing Real Care Data Before You Touch It

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DA and SAFe: Choose the Operating Model Your Context Actually Needs

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A Schema Contract Between Two Care Apps: care-event-v1

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High-Velocity IT Project Management Is About Safer Learning, Not Faster Pushing

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A Probability, Not a Paragraph: What Jev (TypeSafe) Taught Us About Our Own Care-Blog Checks

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Local-First, No Login: What You Get and What You Give Up

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One Care Record, Two National FHIR Profiles: an NZ Base + JP Core Overlay

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An ITIL Managing Professional Lens for the Projects I Actually Run

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Two Moods, No Framework: Theming a PWA and the Light-on-Light Bug

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The Stale-Content Trap: Why PWA Users Saw Old Data Even in Incognito

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Agile Metrics Are Useful Only When They Change the Next Decision

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Disciplined Agile as a Toolkit: Matching the Way of Working to the Work

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Automating CDK Deploys Without Giving Up the Human Gate

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Let the User Say "Done": The Progress Bar That Was Quietly Lying

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Privacy-First Reminders: Web Push Where the Schedule Never Leaves the Device

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A Voice Says "Call the Nurse": Scoping an Honest Care-Alert Prototype

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How I Prepared for the PMP: Four Months of Weekends, in My Second Language

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Paper Care Logs to Analysis-Ready Data: The ParkinSync Pipeline

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Two Gotchas from Migrating a Shopify Domain to CloudFront

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Client-Grade Project Management, Solo: GitHub Issues as the Source of Truth

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Why Automatic OCR Import Still Needs Human Review

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Introducing ParkinSync: A Household Care-Log Research Pipeline